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Tungsten permanent chemical modifier with co-injection of Pd(NO3)(2)+Mg(NO3)(2) for direct determination of Pb in vinegar by graphite furnace atomic absorption spectrometry
(Elsevier B.V., 2007-01-01)
A tungsten carbide coating on the integrated platform of a transversely heated graphite atomizer (THGA((R))) used together with Pd(NO3)(2) + Mg(NO3)(2) as modifier is proposed for the direct determination of lead in vinegar ...
Simultaneous determination of chromium and nickel in medicinal plants by slurry sampling graphite furnace atomic absorption spectrometry
(2013)
Slurry sampling graphite furnace atomic absorption spectrometry was employed for the simultaneous determination of Cr and Ni in medicinal plants. A chemical modifi er was not required and the optimum pyrolysis and atomization ...
Determination of tin and lead in sediment slurries by graphite furnace atomic absorption spectrometry
(Springer WienWienAustria, 2009)
Feasibility of internal standardization in the direct and simultaneous determination of As, Cu and Pb in sugar-cane spirits by graphite furnace atomic absorption spectrometry
(Elsevier B.V., 2009-03-16)
Bismuth and Sb were evaluated as internal standards (IS) to minimize matrix effects on the direct and Simultaneous determination of As, Cu, and Pb in cachaca by graphite furnace atomic absorption spectrometry using W-coated ...
Feasibility of internal standardization in the direct and simultaneous determination of As, Cu and Pb in sugar-cane spirits by graphite furnace atomic absorption spectrometry
(Elsevier B.V., 2009-03-16)
Bismuth and Sb were evaluated as internal standards (IS) to minimize matrix effects on the direct and Simultaneous determination of As, Cu, and Pb in cachaca by graphite furnace atomic absorption spectrometry using W-coated ...
Evaluation of solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry for direct determination of chromium in medicinal plants
(Pergamon-Elsevier B.V. Ltd, 2012-12-01)
A method for Cr determination in medicinal plants using direct solid sampling graphite furnace high-resolution continuum source atomic absorption spectrometry was developed. Modifiers were dispensable. Pyrolysis and ...
Cloud point extraction for the determination of lead and cadmium in urine by graphite furnace atomic absorption spectrometry with multivariate optimization using Box–Behnken design
(2007)
Cloud point extraction (CPE) is proposed as a pre-concentration procedure for the determination of Pb and Cd in undigested urine by graphite furnace atomic absorption spectrometry (GF AAS). Aliquots of 0.5 mL urine were ...
Direct determination of iron in sand using solid sampling graphite furnace atomic absorption spectrometry
(SPRINGER WIEN, 2008)
A fast and reliable method for the direct determination of iron in sand by solid sampling graphite furnace atomic absorption spectrometry was developed. A Zeeman-effect 3-field background corrector was used to decrease the ...